Viewing Issue Advanced Details
|ID||Category [?]||Severity [?]||Reproducibility||Date Submitted||Last Update|
|02774||Graphics||Minor||Always||Dec 26, 2008, 17:43||6 days ago|
|Tester||hap||View Status||Public||Platform||MAME (Self-compiled)|
|Version||0.128u7||Fixed in Version||0.205GIT||Build|
|Summary||02774: grdians: Occasional 1-frame glitches|
|Description||Sometimes, a single frame will have glitches in it, probably related to the sprite table.|
|Steps To Reproduce||
Visible in attract mode:
- at the green alien in the intro
- about 30 seconds into the 2nd demo play
|Affected Sets / Systems||grdians|
0029.png (8,913 bytes) Dec 26, 2008, 17:43
0042.png (22,700 bytes) Dec 26, 2008, 17:44
|There are no relationship linked to this issue.|
Dec 27, 2008, 14:28
Overclocking the CPU gets rid of the problem, so it might as well be related to interrupt acknowledge, causing a corrupted sprite table instead of just slowdowns.
btw, there's a note in seta2.c "VSync: 58.5Hz", while it's emulated at 60Hz in MAME, changing that doesn't fix this problem though.
28 days ago
edited on: 27 days ago
In case it helps, some pcb evidence.
At least the correct alien animation can be seen:
7 days ago
|these glitches are now fixed|